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36 lines
772 B
Plaintext
36 lines
772 B
Plaintext
---
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page_title: coalesce - Functions - Configuration Language
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description: |-
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The coalesce function takes any number of arguments and returns the
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first one that isn't null nor empty.
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---
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# `coalesce` Function
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`coalesce` takes any number of arguments and returns the first one
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that isn't null or an empty string.
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## Examples
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```shell-session
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> coalesce("a", "b")
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a
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> coalesce("", "b")
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b
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> coalesce(1,2)
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1
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```
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To perform the `coalesce` operation with a list of strings, use the `...`
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symbol to expand the list as arguments:
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```shell-session
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> coalesce(["", "b"]...)
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b
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```
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## Related Functions
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- [`coalescelist`](/docs/templates/hcl_templates/functions/collection/coalescelist) performs a similar operation with
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list arguments rather than individual arguments.
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